Slug casting machine



March 26, 1940. H. A. BURT SLUG CASTING MACHINE Filed March 2, 1939 4 Sheets-Sheet 1 IN VENTOR WNEYS March 1-|. A. BURT 2,195,143

swe CASTING MACHINE Filed March 2, 1939 4-sneetsesneet 2 INVENTOR .iilili 3 7 I I l I I l l l l l 1 I March 26, 1940.

H. A. BURT SLUG CASTING MACHINE Filed March 2, 1939 4 Sheets-Shae! 5 6'8 4'0 a4 1 69 as 7 1 HI 1 l lh' H|| 11v VEAITOR MW 4 M A TORNE Y8 March 26, 1940. H, A, URT 2,195,143

swe CASTING MACHINE Filed March 2, 19:59 4 Sheets-Shae! 4 Fag. z

INVENTOR Patented Mar. 26, 1940' I I ;.2,195,'14s [SLUG CASTING MACHINE Harold A. Burt, St. Albans, assignor to Mer'genthaler Linotype Company, a corporaa, .tionof New Y ork' Application March 2, 1939, Serial N ..259,s79 --20 Claims. '(o1. 199 6 This invention relates to slug casting machines 1 of the generalorganization 'represente'din U. S. Letters Patent No. 436,532 to O. :Mergenthaler, wherein circulating matrices are released from a magazine in the order. in which their characters v are to appear in priht,and-then assembled in line,

the composed line presented against the face of r a slotted mold, the moldfilled with molten metal to form a type bar or slug against the matrices which produce thetypexcharacters thereon, the

matrices returned throughfdistributing.mechanism to the magazine from which they started,

and the type bar or slug ejected'from the mold by a blade which advances against the rear edge thereof.

To enable slugs of different measuresto be cast, such machines are provided with a plurality'of molds (usually four in number) mounted on a disc which -is rotated by a power driven pinion. In the casting cycle, the disc isfirst given a quarter rotation to bring themoldin use into slug casting position, and, then after the slug has been cast, a

three-quarter rotation to bring the mold back to,

its original or slug ejecting position. I In selecting 5 a mold for use when the machine is at rest, the mold disc turning pinion is pulled forward to uncouple it from its-driving mechanism, then rotated manually to bring the desired mold on the disc into operative position, and then pushed 39 rearwardly to recouple it .to its driving mechanism. The ejector blade employed in such'machines ordinarily comprises'a series of sections arranged edge to edge in contacting relation, and suitable devices are employedwhereby any desired number of sections can be connected to the ejector slide while the others remain at rest. every time a different mold is selected for use, an adjustment must be made-in the numberof efiec I tive blade sections so that'their combined width. 0 will accord with the length-of the slot in the mold selected. I

According to the present invention, the required adjustment in the width of "the ejector blade is.

effected during the .mold changing operation; To this end, the machine is equipped with suitable mechanism which acts to restore the ejector'blade to a minimum width each, time, the mold disc turning pinion is pulled forward to uncouple it from its driving connection preparatory to the which thereafter. acts under the control of the newly selected mold f to adjust the width of the ejector blade in accordance with the length of the mold slot as the pinion is pushed rearwardly to recouple it to its driving mechanism.

its driving mechanism; I

In consequence,

rotation of the disc in selecting a new mold, and

" For i a detailed description of the invention,

\reference will be made to the" accompanying drawings wherein'the invention has been shown in preferred form, although obviously many variations and modifications may be made therein which will still becomprised within its spirit. It is to be understood, therefore, that'the invention is not limited to any specific form or embodiment except insofar'assuch limitations are specified in the appended claims; J; Referringto the drawings: I i

Fig. .1 is a front elevation of a portion of a slug casting machine embodying the present invention; .Fig. 2. is side elevation, "partly in section,

I showing the train of connections between the mold discturning pinion and the ejector adjusting devices; fl

Fig. 3" is a. side elevation, partly in section, showing the mold disc turning pinion uncoupled from Fig. 4 is afront view showing in detail the adjustable stop plate and its actuating mechanism; ,Fig..'5 is a side elevation (similar to Fig. 3)

- showing the mold disc turning pinion coupled to its driving mechanism;

" Fig. 6 is'a plan view, partly in'section, showing the relative position of the stop plate, its actuating arm, and the arresting screw against which the stop plate banks when in normal position; Fig. .7 is a similar view showing the stop plate in adifferent set position; and v Fig. 8 is'aperspectiveview of a detail. "In Fig. 1, the machine is shown with a mold disc l0 equipped with four molds designated 12 em,

151.6111, 24 em and em, respectively, the last mentioned mold being the one in operative position-QDuring a machine cycle of operation, the

molddisc Ill is rotated by a power driven pinion H, first, through ninety. degrees in a counterclockwise direction to carry the mold then in use from its vertical ejecting position to a horizontal casting position, and thereafter through two hundr ed seventy degrees in the same direction to carry the mold back to its vertical ejecting position.

- As usual, the mold disc turning pinion II is provided with a forwardly projecting hub portion Z rotatably mounted on a sleeve 13 pinned to the front end of a fore-and-aft power driven shaft [4. At its rear end, the sleeve. I3 is provided with a collar l5..havinga radial armlfi from which a coupling pin l! projects forwardly intoja hole or recess. [8. formed in the rear face of thepinion l I. The hub portion [2, at its forward end, terminates in a conical face I9 which joins it with a reduced sleeve Zll'positioned about a stud 2| threaded into theforward end of the shaft 14 and forming a housing'for a compression spring 22, one end of which bears against the head of the stud 2| and the other end of which bears against a bearing collar 23. When it is desired to change the mold in use, the pinion H is pulled forward by means of a hand wheel 24, carried by the outer end of the reduced sleeve 20, until the coupling pin 51 is disengaged'from the recess l8, andth e pinion is then rotated manually to turn the mold disc It until the selected mold is brought into opera- 1 tive position, by which rotation the recess 18 in the pinion H is brought inv alignment with the pin {1; whereupon the pinion H is released and, forced rearwardly by the spring 22 to engage the pin ii in the recess I8 and so recouple' the pinion I l to the drive shaft [4.

The slug ejecting mechanism herein employed is of the sort shown and described in U S. Letters Patent No. 967,976 granted to J. R. Rogers on August 23, .1910. In general, it comprises a series of blade sections arranged edge to edgeand guided between a side plate 3! and the mold slide The sections 30 are actuated by ind,i-

32 (Fig. 2). vidual horizontal slides 33 mounted in grooves formed in the mold slide32-. 'Avertical bar 34, slidably mounted in a groove cut in the face of an ejector slide behind the rear ends of the horizontal slides 33, serves to connect the slide 35' to any selected number of blade sections 30. The

lower end of the vertical bar 34 is provided with an offset portion 35 slidably mounted on a forea-nd-aft rod 31 carried by a plate 38Which, in turn, is slidably mounted in a bracket 39 secured to the main frame of the machine.

Coming now to the present invention, automatic means are provided for so positioning the vertical slide bar 34 during the mold changingop eration that the combined width of the blade sections Ell actuated thereby as the ejector slide 35 moves forward corresponds to ,the length of the slot in the mold selected. To this end, there is provided between the mold turning pinion H and the bar actuating plate 38' a system of levers whereby the uncoupling movement of the pinion l i will shift the bar 34 to its lowermost cr stal -t ing position and whereby the recoupling move ment of the pinion H will shift the bar 34 to its required final position as determined by the slot length of the new mold brought into operative po sition by'the rotary adjustment'of themold disc it, the latter being provided with variant devices,

' one for each mold, which cooperate during. the

rotary adjustment of the mold disc l0 with an ad justable stop plate carried by one lever of the system and which-set it in whatever position is necessary to arrest the upward movement of the bar 3A in selecting the required number of blade sections 30 forthe newly selected mold.

'I'he system. of levers between the mold turning pinion l I and the bar actuating plate 38 includes a Vertical rocker arm Ml mounted beneath the pinion H on a shaft 4| journalled in bearings 42 of a bracket 43 secured to the main frame of the machine. The bifurcated upper end of the, rocker arm 45 is provided with an anti-friction roller 44 positioned in the path traveled by the conical face iii of the pinion I i as the latter is pulled forward to uncouple it fromthe shaft l4. Pivotally connected to, the lower end of the rocker arm is a fore-and-aft link 45 whose rearen'd is providecl with a pin 46 positioned in an open-ended slot ll formed in the, upper end of the vertical arm of a bell-crank lever 48 mounted on a shaft 49 journalled in bearings 56 of a bracket 51secured to the main frame of the machine; A vertical link 52, at its upper end, is pivotally connected to the bell-crank lever 48 at the outer end of the horizontal arm thereof,' and at its lower end, the vertical link 5.2 is connected to a laterally disposed or cross arm 53 at the left end thereof through'the mediumof a stud b l. The cross arm 53 is pivotally'mounted between its ends on a stud 55 carried by an extension of the bracketfil. At its right endqthe cross armbS is pivotally connected to theiower end; of an adjustable link 51, whose upper end is" pivotally connected to the forward endof an off set fore-and-aft rocker arm 58. The rocker arm ,53 is pivotally mounted between its ends on a stud 59 carried by a bracket 66 secured to the main frame of the machine, and

' at its rear end itis provided with an open-ended slot 6! throughwhich extends a pin 62 carried by the bar actuatingplate 38. I i g v Between its pivotal. axis'and the lower end thereof, the rocker arm is providedwith' a horizontal groove in which a stop plate 85 is slidably mounted. -Normally,-the plate65 banks against a screw 68, carried by a depending arm E53 which forms partof the"bracket.43, and is locked in set position by means of a pivoted latch- 58 which. engages ratchet teeth 69 formed on the upper edge thereof (see Figs. Zand e) When the pinion H is pulled forward to un" couple it from shaftld during a mold changing operation, the anti-friction roller 44 is engaged by the conical face it: and the lower end of the rocker arm 49 (see Fig. '3) is moved toits rearn'iost position against the action of a pull spring Ali to position the stop plate opposite an adjusting screw 12. carried by the lower end of an actuating arm 13 (see Fig. 4), which latter is pivotallymounted at itsupper end on a stud 14 carried by a bracket 75 forming apart of the usual lateralarm or extension 16 of the mold slide. As a the lower end of the rocker arm 40 moves to its rearmost position, the rear end of the latch 66 is depressed by its engagement against a trackway 19 formed on the bracket 56, and the front end thereof is freed'from engagement with the ratchet teeth (iii. A pull spring l'l then acts to'shift the stop plate $5 to the right tocarry the right end thereof against the adjusting screw 12. To limit its movement to the right under the influence of the pull spring H, the plate $5 is provided with an arresting block H which-banks against a shoulder 78 on the rocker arm fill when the plate 65 is in its rightmost position (see Fig. 4).

Also when the lowerend of the rocker arm all is moved rearwardly against the action of the pull spring Mi the bell-crank lever Q8'is rotated counter-clockwise about its pivotal axis through the. mediumof the fo're-and-aftlink 55. Such counter-clockwise rotation of the bell-crank lever 48 forces the vertical. link 52 downwardly and so rocks the cross arm 53 counter-clockwise about the stud 55.- As the cross arm 53 thus rotates CO'LlHtEI -CIOCRW'lSvQ, the front end of the fore-andaft rocker'arm 58 is forced upwardly and the rear thereof is forced downwardly through.

the'medium of the connecting link 5?. As the rear end of the fore-and-aft rocker arm 43 is forced downwardly, the bar actuatingplate 38 carrying the fore-and-aft rod 31 ispulled downwardly to its lowermost positionjcarrying with it the bar 3d torestore the effective width of the ejector to a single 4 em section attached to the lowermost slide 33, as shown by the dotted lines in Fig. 2.

It is to benoted that during the later part of 'tem of levers duringtheuncoupling movement of the driving'pinion ll being provided for reasons subsequently to appear.-

' 'After the-stop plateBE has been brought against the banking screw-l2 in response to the uncoupling movement of the pinion i i, it is reset during the rotary manual adjustment of the mold disc it! in whatever position is necessary to arrest the upward movement of thebar 3 1 in selecting the required number of blade sections 33 for the newly selected mold. As stated heretofore, the resetting of the stop plate 65 is effected through the medium of, variant devices mounted'on the mold disc, and which, in the present embodiment of the invention, comprise four selector blocks of different sizes, one being positioned at'thl-:-1ea'ding or foremost end of each of the four molds on the disc H3, as determined by the usual counterclockwise rotation of the disc. When the mold disc I0 is rotated counter-clockwise to bring a selected mold into operative position, the selector block -38 at the leading or foremost end of the mold positioned opposite the selected mold engages and depresses a horizontal arm 8! which cooperates with the aforementioned actuating arm it, moving the stop plate 65 to the left a distance dependent on the size of. the particular block in action. 7

When the pinion H is recoupled to the shaft !4 after the rotary adjustment of the mold disc, the pull spring 48 acts to rock the arm 40 about its pivotal axis and so force the lower end thereof forwardly until further movement thereof is prevented by the engagement of the stop plate 65 against the banking screw 66 (see Fig 1). During the initial forward movement of the lower end of the rocker arm 40, that is to say, while the lost motion in the system of/ levers is being absorbed, the rear end of the latch 68 is carried out of engagement with the 'trackway 1H, and the forwardend thereof is carried into engagement with the ratchet teeth 59 by means of a spring 82 to lock the stop plate in the position to which it was set during the rotary adjustment of the mold disc (see Fig. 5). Also during the initial forward movement of the lower end of the rocker arm 49, the stop plate 65 is carried away from the adjusting screw 12 and so remains undisturbed during the normal operation of the'machine (see Fig. 6) During the latter part of the forward movement of the rocker arm 40,.that is to say, after the lost motion in the system of levers has been absorbed, the cross arm 53 is rotated clockwise through the medium of the fore-and-aft link 45, the bell-crank lever 48 and the vertically disposed link 52 (see Figs. 1 and 2) As the cross arm 53 rotates clockwise, the forward endof the fore-and-aft rocker arm 58 is pulled downwardly through the medium of the connecting adjustable link 5'! and the rear end thereof is forced upwardly; and as the rear) end of the rocker arm 58 is forced upwardly, the slide plate 38 carrying the foreand-aft rod 31jis likewise forced upwardly, carrying with it the bar 34 until further clockwiserotation of the cross arm 53 is arrested by the engagement of the stop plate 65 against the banking screw 66.

Adjacent the left end thereof, the stopplate S5 is provided with a projecting flat face 83 and with an inclined face 84 which leads flOmi. the front face of the stop plate-65 to the left end of the flat face 83 (see Figs; 4, 6 and '7). .The stop plate 65 is so positioned in the lower end of the rocker arm 40 that when the front face thereof engages the banking screw 66, the clockwise rotation .of the cross arm 53 islarrested after the bart i has been forced upwardly behind all the slides 33 for a total 7 effective ejector width of 30 ems. The distance that the flat face 83 projects outwardly beyond the front face of the stop, plate 65 is such that, immediately after the lost motion in the system of levers is absorbed, it engages the banking screw 66 to prevent the clockwise rotation of the cross arm 53 before the rod 34-is carried upwardly beyond the lowermost slide 33, thus keeping the effective width of the ejector at 4 ems.

The pitch of'the sloping face 84 is such that when it, at any given point along its length, engages the banking screw 66 the clockwise rotation of 1 the cross arm 53 is arrested after. the bar 34 is elevated behind a correspondingnumber of slides 33. In consequence, by employing selector blocks 80 which move the stop plate 65 to the left during the rotary adjustment of the mold disc Ill until the front face of the plate (Fig. 2) or the projecting flat face 83 (Fig. 5) or the tapered face 84' (Fig. '7) is behind the banking screw 66, it is thus possible to-obtain automatically a setting of the ejector which will accord respectively with a 30 em mold, or a 4 em mold, or a mold between these two extremes as, for example, one or another of the 12 em, 15 em and 24 em molds shown in Fig. 1.

'The'stopplate actuating arm 81, in projecting into the path traveled by the selector blocks 88 during'the rotation of the mold disc It], will be actuated thereby regardless of the direction in which the mold disc is rotated. However, if the engagement of the horizontal arm 8! by the blocks 80 during the clockwise rotation of the disc affected the set screw arm 13, itis quite possible that the lower end thereof would be swung into the path of the molds and cause considerable damage. To prevent such an occurrence, the

lower end of the arm 73 banks against a stop pin 85 and the upper end thereof is provided with an offset shoulder 86 (see Fig. 8). The left end of the horizontal arm 8! is pivotally mounted on the same stud M upon which the upper end of the actuating arm 13 is mounted, and it is provided with a vertical end face 81, with a bottom flat face 88 which rests on the offset shoulder 86 and which projects to the right from a verticalxline through the center of the stud 14, and with a rounded corner 89 which joins the vertical end face it! and I In consequence, when the bottom fiat face 88. the horizontal arm 8| is actuated during the.

counter-clockwise rotation of the mold disc H3,

the engagement between the bottom fiat face 38 of the horizontal arm 8 l and the offset shoulder 33% of the arm 13 causes the lower end of the arm '13 to swing to the left, but when thehorizontal arm 8! is actuated during the clockwise rotation of the mold disc III, the rounded corner 89 rolls on the offset shoulder 86 against the action of an offset leaf spring 90 and so leaves the arm l3 undisturbed.

At certain times, the right hand end of the stop plate 55 will extend beyond the end-of the adjusts ing screw .12 on the actuating arm 13 when'the 3 pinion ll is pulled forwardto uncouple it from shaft I 4. vTo preventdamage when this condition exists, theactuating arm i3 is made up of two sections 9! and. 92 respectively. The lower end ofthe upper section 9i terminates in a sleeve event the right hand end of the stop plate 65 engages the adjusting screw 12 when the pinion i l is uncoupled from the shaft M, the lower end section 92 simply rotates rearwardly action of the spring 96. I

Having thus described my invention, what I claim is;

against the 1. In a slug castingmachine equipped with a plurality of slotted molds mounted on a rotatable disc which is adjustableby its driving pinion to bring any selected mold into use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after such rotary adjustment of the mold disc, respec- I tively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold,and a shiftable element to sition of the ejector adjusting element include an adjustable stop device which is set in one position or another according to the slot length in the newly selected mold.

A combination as specified in claim 1, wherein the means for determining the final position of the ejector adjusting element include an adjustable stop device cooperative with variant devices carried by the rotary mold disc.

l. In a slug casting machine equipped with a plurality of slotted molds mountedon a rotatable disc which is adjustable by its driving pinion to bring any selected mold into use, saidpinion being movable to uncouple it from and recouple it with the driving mechanism before and after SLlCl'll'OliiJY adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold, and a shiftable element to effect such adjustment of the ejector mechanism, the combination of a system of levers between the driving pinion and the ejector adjusting element operative by the uncoupling movement of the pinion to shift said adjusting element to a given starting position and operative by the recoupling movement of the pinion to shift said element to the required final position, and an adjustable stop device carried by one lever of the system and automatically actuated during the rotary adjustment of the mold disc to determine such final position of the ejector adjusting element.

5. In a slug casting machine equipped with a plurality of slotted molds mounted on a rotatable disc which is adjustable by its driving pinion to bring any selected mold into'use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after such rotary adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold, and a'shiftable element to effect such adjustment of the ejector mechanism, the combination of a system, of levers between the driving pinion and the ejector adjusting element operative by the uncoupling" movement of the pinion to shift said adjusting element to a given starting position and operative by the recoupling movement of the pinion to shift said element to the required final position, and an adjustable stop device carried by one lever of the system to determine such final position of the ejector adjusting element, said step device being actuated to its set position by the mold disc during the rotary adjustment thereof.

6. In a slug casting machine equipped with a plurality of slotted molds mounted on a rotatable disc which is adjustable by its driving pinion to bring any selected mold into use, said pinion being movable to uncouple' it from and recouple it with the driving mechanism before and after such rotary adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold, and a shiftaole element to effect such adjustment of the ejector mechanism, the combination of a system of levers between the driving pinion and the ejector adjusting element operative by the uncoupling movement of the pinion to shift said adjusting element to a given starting position and operative by the recoupling movement of the pinionbto shift said element to the required final position, and an adjustable stop device carried by one lever of the system to determine such final position of the ejector adjusting element, said stop device being actuated to its set position during the rotation of the mold disc by variant devices carried by said disc.

'7. In a slug casting machine equipped with a plurality of slotted molds'mounted on a rotatable disc which is adjustable by its driving pinion to bring any selected mold into use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after such rotary adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold, and a shiftable element to effect such adjustment of the ejector mechanism, the combination of a system of levers between the driving pinion and the ejector adjusting element operative by the uncoupling movement of the pinion to shift said adjusting element to a given starting position and operative by the recoupling movement of the pinion to shift said element to'the required final position, an adjustable stop device carried by one lover of the system to determine such final position of the ejector adjusting element, variant devices mounted on the mold discand acting selectively by the rotary adjustment thereof to set the stop device in'one position or another according to the slot length of the newly selected mold, and automatic means for locking the stop device in its set. position. 1

8. In a slug casting machine equippedwith a plurality of slotted molds mounted on a rotatable disc which is adjustable by its driving pinion to blade width to; correspond with the slot length of the, selected ,mold, and a shiftable element to effectsuch adjustmentof the ejector mechanism, the combination of a system of levers between the drivingpinionand the ejector adjusting element operative by the uncoupling movementof the pinion to shift said adjusting element to a given starting position and operative by. the recoupling movement of the pinion to shift said element to the v required final'position, an adjustable stop device carried by one lever of the system'todetermine such final position of the ejector adjusting element, vari antdevicesmountedon the mold disc and acting selectively by the rotary adjustment thereof to setthe stop device in one position or another according to the slot length of the newlyselected mold, and automatic means for locking the stop device in its set position, said locking means being actuated by the uncoupling movement of thedriving pinion to release the stop deviceand permit it to assumea starting position preparabring any selected mold into use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after suchrot'ary adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade Width to correspond with the slot length of the selected 'mold, and a shiftable element to eifect such adjustment of the ejector mechanism, the combination of asystem of levers, including a rocker arm, between the driving pinion and the ejector adjusting element operative by the uncoupling movement of thepinion to shift said adjusting element to a given starting position and operative by the, recoupling movement of the pinion to shift said element to the required final position, and an adjustable stop plate carried by said rocker arm to determine such final position of the ejector adjusting element.

10. In a slug casting machine equipped with a plurality of slotted molds mounted on a rotatable disc which :is adjustable by its driving pinion to bring any selectedmold into use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after,

such rotary adjustmentof the mold disc, respectively, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selectedmold, and ashiftable element to effect such adjustment of the ejector mechanism,

- elementto the required final. position as determined bythe location of said plate, and'means responsive to the rotary adjustment of the mold disc-for locating said plate in one position or I another according to the slot lengthof the newly selected mold.

11. In a slug casting machine equipped with a plurality of slotted molds mounted on a rotatable disc which is adjustable by its driving pinion to bring any selected. mold into use, said pinion being movable to uncouple it from and recouple it withthe driving mechanism before and after such rotaryadjustment of the mold disc, respecy tively, an ejector mechanism adjustable asg to blade Width to correspond with the slot length of the selected mold, and a shiftable element to elfect, such adjustment of the ejector mechanism, the combination of a system of levers, including a roclrer arm carrying an adjustable stop. plate, between the driving pinion and the ejector adjusting element operative by the uncoupling movement of the pinion to shift said adjusting element to a given starting position and operative by the recoupling movement of the pinion to shift said element to the required final position as determined .by'the' location of said plate,and' variant devicejsfmounted on the mold disc and adapted during the rotary adjustment thereof to locate said plate in one position or another according to the slot-length of the newly selected mold.

12. In a slug casting machineequipped with a plurality of-slotted molds mounted on a rotatable disc which is adjustable by itsdrivingpinionto bring any selected mold into use, said pinion being movable to uncouple it from and recouple it with the driving mechanism before and after T such rotary adjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade width. to correspond with the slot length of the selected mold, and a shiftable element to effect such adjustment of theejector mechanism, the combination of a system of levers, including a rocker arm carrying an adjustable stop plate, between the driving pinion and the ejectoradjusting element operative "by the uncoupling movement of the pinion toshift said adjusting element to a givenstarting position and operative by the recoupling movement of the pinion to shift said element to the required final position 1 as determined by the location of said plate,

means responsive to the rotary adjustment of the mold disc for locating said plate in oneposi tion or another according to the slot length of the newly selected mold, and means for locking said plate in the position to which it is set du'r ing the rotary adjustment ofthemold disc.

13. In a slug casting machine equipped with a plurality of slotted molds mounted on a rotatable disc which is adjustable by its driving pinion to I bring any selected mold into use,-said pinion,

being movable to uncouple it from and recouple it withthe driving mechanism-before and after such rotaryadjustment of the mold disc, respectively, an ejector mechanism adjustable as to blade Width tocorrespond with the slot length of the selected mold, and a shiftable element to effect such adjustment of the ejector mechanism, I the combination of a system of levers, including a, rocker arm carrying an adjustable stop plate,

between the driving pinion and the ejector adjusting element operative by the uncoupling movement of the pinion to'shift said adjusting elementto a given starting position and'operative by the recoupling movement of the pinion the rotary adjustment of the mold disc, said locking means being actuated'by the uncoupling movement of the driving pinion to releasethe stop plate and permit it to assume a starting position preparatory to the rotary adjustment of the mold disc, and said locking means being actuated by a slight lost motion in the recoupling movement of the driving pinion to hold the stopplate in its set position as determined by the I rotary adjustment of the mold disc.

14. In a slug casting machine equipped with a mold disc having a plurality of slotted molds interchangeable in operative position with each other, an ejector mechanism adjustable as to blade width to correspond Withthe slot length means actuated during the interchange of molds for first shifting the ejector connecting element to a given starting position and then to its required final position, and means controlled by the newly selected mold for determiningsuch final position of the ejector connecting element.

15; In a slug casting" machine equipped with a mold disc having a pluralityof' slotted molds interchangeable in operative position with each other, an ejector mechanism adjustable as 'to lade width to correspond with the slot length of the mold in operative position, said mechanism comprising a main actuating slide and a series of blade sections arranged in superposed edge to edge relation, and a shiftable element to H connect any selected number of blade sections to of molds for first shifting the ejector connecting element to a given starting position and then to its 'required final position, and means con.- trolled by the newly selected mold for determining such final' position of the ejector connecting element.

16. In a slug casting machine equipped with a mold disc having a plurality of slotted molds interchangeable in operative position with each other, an ejector mechanism adjustable as to blade width to correspond with the slot length of the mold inoperative position, said mechanism comprising a main actuating slide and a series of blade sections arranged in superposed edge to edge relation, and a shiftable element to connect any selected number of blade'sections to the main actuating slide, thecombination of a system of levers actuated during the interchange of molds for first shifting the ejector connecting element to a given starting position and then to its required final position, and a stop device controlled by the newly selected mold for determining such final position of the ejector connecting element.

17. Ina slug casting machine equipped with a mold disc having a plurality of slotted molds interchangeable inoperative position with each other, an ejector mechanism adjustable as to blade width to correspond with the slot length of the mold in operative position, said mechanism comprising amain actuating slide and'a.

18. In a slug casting machine equippedwith a mold disc having a plurality of slotted molds interchangeable in operative position with each other, an ejector mechanism adjustable as to blade width to correspond with the slot length of the mold in operative position, saidmechanism comprising a main actuating slide and a series of blade sections arranged in superposed edge to edge relation, and a shiftable element to connect any selected number of blade sections to the main actuating slide, the combination of a system of levers actuated during the interchange of molds for first shifting the ejector connecting element to a'given starting position and then to its required final position, a stop device for arresting the movement of said levers, and a selector block on said mold disc adapted to so position said stop device during-the interchange of molds that the movement of the levers is arrested thereby When the ejector connecting element is shifted'to its required final position.

19. In a slug casting machine equipped with a mold disc having a plurality of slotted molds interchangeable in operative position with each other, an ejector mechanism adjustable as to blade width to correspond with the slot length oi the mold in operative position, said mechanism comprising a' main actuating slide and a series of blade sections arranged in superposed edge to edge relation, and a shiftable element to connect any selected number of blade sections to the main actuating slide, the combination of a system of levers actuated during the interchange of molds for first shifting the ejector connecting element to a given starting position and then to its required final position, a stop device for arresting the movement of said levers, and a selector block on said disc adapted to so position said device as a newly selected mold is brought into operative position that the movement of the levers is arrested thereby when the ejector connecting element is shifted to its required final position.

20.'In a slug casting machine, the combination of a disc carrying a plurality of slotted molds, a pinion movable to uncouple it from and recouple it with thedriving mechanism and operable in its uncoupled position to rotate the disc to bring any selected mold into use, an ejector mechanism adjustable as to blade width to correspond with the slot length of the selected mold, said mechanism comprising a main actuating slide and a series of blade sections arranged in superposed edge to edge relation, a shiftable element to connect any selected number of blade sections to the .main actuating slide, and means actuated by the uncoupling and recoupling movements of the pinion for shifting the ejector connecting element first to a given "starting position I and then to the required final position, respec- HAROLD A. BURT. 

